CN103684954A - Redundantly operable industrial communication system and method for operation thereof - Google Patents
Redundantly operable industrial communication system and method for operation thereof Download PDFInfo
- Publication number
- CN103684954A CN103684954A CN201310431934.6A CN201310431934A CN103684954A CN 103684954 A CN103684954 A CN 103684954A CN 201310431934 A CN201310431934 A CN 201310431934A CN 103684954 A CN103684954 A CN 103684954A
- Authority
- CN
- China
- Prior art keywords
- message
- receiving
- sending
- buffer storage
- storage unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/9084—Reactions to storage capacity overflow
- H04L49/9089—Reactions to storage capacity overflow replacing packets in a storage arrangement, e.g. pushout
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40169—Flexible bus arrangements
- H04L12/40176—Flexible bus arrangements involving redundancy
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40169—Flexible bus arrangements
- H04L12/40176—Flexible bus arrangements involving redundancy
- H04L12/40189—Flexible bus arrangements involving redundancy by using a plurality of bus systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/24—Multipath
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
- H04L47/56—Queue scheduling implementing delay-aware scheduling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/4026—Bus for use in automation systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/32—Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A redundantly operated industrial communication system includes communication devices that are redundantly linked to an industrial communication network and includes network infrastructure devices associated with the industrial communication network, wherein message transmission occurs wirelessly at least in sections. The industrial communication network contains a plurality of buffer memory units for message elements that are received at a network node by wire and message elements that are to be sent by the network node wirelessly. When a maximum buffer size is exceeded, an oldest message element situated in a respective buffer memory unit is erased. Until the maximum buffer size is exceeded, the oldest message element is selected as the next message element to be sent wirelessly.
Description
Technical field
The present invention relates to a kind of can redundant operation industrial communication system and for operating the method for described industrial communication system.
Background technology
In distributed industrial automation system, when collection, assessment and transmission measurement and control data, to guarantee: complete and especially available in real time in the industrial processes strict to time requirement without the data of change.Industrial automation system generally include a plurality of automation equipments via industrial communication network phase the Internet and produce or the scope of process automation in for control or adjusting device, machine or equipment.That be not transmitted or by the message of complete transmission, for example can not stoped industrial automation system proceed under safe mode of operation or stay under safe mode of operation.This finally may cause the inefficacy of whole process units and production stopped status with high costs.In industrial automation system, conventionally many by having, but the message flow of relatively short message and cause special problem aggravates the problems referred to above thus.
In order to compensate communication connection or the inefficacy of communication equipment, communication protocol, as media redundancy protocol, high availability is seamless redundancy protocol or parallel redundancy agreement are developed for industrial communication network high availability, can redundant operation.The in the situation that media redundancy protocol (MSR) defining and can realize disturbance ground redundant transmission message in IEC62439 standard, each Joint failure having in the network of simple ring topology is compensated.According to media redundancy protocol, the switch with two ports within ring topology is assigned Redundancy Manager, and the Joint failure of described Redundancy Manager monitor network and if desired introducing are for the exchange measure of loop closed (Ringschluss).Under normal mode of operation, whether Redundancy Manager checks by means of test post within ring topology, occur interrupting.Yet, the switch that is associated with Redundancy Manager conventionally not by the message with valid data from a port repeat to other ports.Therefore prevented from having message circulation constantly within ring topology of valid data.If switch or Joint failure within ring topology, the test post sending from port is so no longer received at corresponding other ports.Accordingly, Redundancy Manager can identify lost efficacy and in the situation that losing efficacy by the message with valid data in the mode that is different from normal mode of operation from a port repeat to other ports and vice versa.In addition, Redundancy Manager arrangement notifies remaining switch about by losing efficacy caused topology change.Avoid by this way: message is transmitted via the connection of losing efficacy.
In principle, can realize the media redundancy approach that has disturbance with relatively little expending.Yet disadvantageously,, under error situation, message may be lost on the one hand, and during reconfiguring communication network, first has malfunction on the other hand.This malfunction must be by the communication protocol of higher level, for example, by means of the TCP/IP(transmission control protocol/Internet Interconnection agreement in network layer or transport layer) protect, to avoid the interruption of communication connection.
PROFINET(IEC61158 Class1 0) also references media redundancy protocol as the media redundancy approach that has disturbance having within the communication network of ring topology.On the other hand, in a planned way copy media redundancy (MRPD) expansion to the real time data of undisturbed ground transmitting synchronous is provided.Yet in a planned way copying media redundancy is not the undisturbed media redundancy approach irrelevant with application, but the special expansion of PROFINET.
In IEC 62439-3 standard, define the seamless redundancy protocol of high availability (HSR) and parallel redundancy agreement (PRP), and can be to realize the undisturbed redundant transmission of message extremely short recovery time.According to the seamless redundancy protocol of high availability and parallel redundancy agreement, by the communication equipment sending, copy each message, and it is sent to receiver with two kinds of different paths.By the communication equipment of receiver-side, from receiving data stream, filter out the redundancy message that represents copy.
In EP 2 282 452 A1, describe a kind of for carry out the method for transfer of data in ring-like communication network, in described method, according to the seamless redundancy protocol of high availability, carry out transfer of data, and communication network comprises at least one host node, a source node and a destination node.Each node has the first and second communication interfaces with corresponding the first and second adjacent nodes.In addition, each node is via the first communication interface receiving data frames, and by received Frame change or without change via second communication interface without extra delay forward.Host node by the Frame of the first and second redundancies or empty Frame send to its first or second-phase neighbors.When receiving the Frame of two redundancies, source node is filled corresponding Frame with process data in predetermined reserve area.Subsequently, each Frame of having filled is transmitted to first or second-phase neighbors of source node immediately and individually.Finally, destination node leaching process data from received first Frame of having filled of the Frame centering of redundancy.
Known a kind of for carry out the method for redundancy communication in communication system from EP 2 413 538 A1, described communication system comprises a plurality of communication networks.Communication network interconnects via at least one switching node.Information based on limiting before transfer of data stops the data that are derived from the first communication network to be passed to the first communication network from second communication network to passback.
In IEC 62439-3 standard, long time of delay based in wireless communication system and by the transport behavior of its caused uncertainty, be only the transmission path of parallel redundancy agreement (PRP) regulation wired connection up to now.At Markus Rentschler, Per Laukemann in IEEE 2012 " Towards a Reliable Parallel Redundant WLAN Black Channel ", checks the applicability of WLAN transmission path in PRP communication network.By means of the Parallel application of the different diversity technique for for example space, time and frequency, can in WLAN communication network, compensate fully the impact of accidental channel decline.
Summary of the invention
The object the present invention is based on is, realize a kind of communication system with the energy redundant operation of wireless propagation path, described communication system is suitable for being applied in industrial automation system, and proposes for the assembly of such communication system and a kind of for operating the method for described communication system.
According to the present invention, described object realizes by communication system, network node and the method proposing in this article.Favourable improvement project of the present invention illustrates hereinafter.
Communication system according to the present invention comprises a plurality of communication equipments that are connected to redundantly on industrial communication network, and described communication equipment has respectively at least one first and second sending and receiving unit.Treat that the transmission of message of redundant transmission is preferably according to the seamless redundancy protocol of high availability or carry out according to parallel redundancy agreement.Two sending and receiving unit have respectively interface that the network for industrial communication network connects and the identical network address.Signal processing unit is connected with the first and second sending and receiving unit, and signal processing unit has for by the parallel multiplexer module that is transmitted to two transmitting elements of message to be sent with for the treatment of the redundant processing unit by the received message of two receiving elements.The signal processing unit of the communication equipment of redundancy link for example can be realized by means of field programmable gate array.Redundant processing unit comprises the filter unit being established as for detection of the message of received redundancy.
In addition, communication system according to the present invention has a plurality of network infrastructure device that are associated with industrial communication network, and described network infrastructure device has respectively a plurality of sending and receivings unit and by the interconnective coupling element in sending and receiving unit of network infrastructure device.The coupling element of network infrastructure device can be for example high-speed bus or the back plate type switch with set controller.Industrial communication network comprises a plurality of sending and receiving stations for wireless information transmission.For example, can be provided with the first and second sending and receiving stations, wherein the first sending and receiving station is that base station and the second sending and receiving station are the Wireless Telecom Equipments that can be connected with base station.
In addition,, according to the present invention, industrial communication network comprises a plurality of buffer storage units for receiving through a cable on network node and treated the message element of wireless transmission by described network node.Buffer storage unit for example can be distributed to network infrastructure device, for sending and receiving station and the preferable configuration of wireless information transmission, be buffer circle.In addition, buffer storage unit has respectively largest buffered size and forms and be established as, and makes, when surpassing largest buffered size, the oldest message element existing in corresponding buffer storage unit to be deleted from buffer storage unit.The oldest message element is for example corresponding to be first inserted into the message element in buffer storage unit in all message elements that are present among corresponding buffer storage unit.
In addition, according to the present invention, buffer storage unit forms and is established as, and makes, before surpassing largest buffered size, the oldest message element to be elected to be to the message element that the next one is treated wireless transmission.By this way, when employing wireless transmission path, can avoid in industrial communication system that can redundant operation unallowed high time of delay.
According to according to communication system of the present invention particularly preferred design, buffer storage unit forms and is established as, and makes from corresponding buffer storage unit, to delete message element when surpassing default permission timeliness.This contributes to further to shorten time of delay.
The message of redundancy preferably identifies by unified sequence number each other, and wherein the signal processing unit of the communication equipment of redundancy link is established as for serial number assignment being given to the message treat redundant transmission.In addition, signal processing unit is assigned memory cell, and described memory cell is established as for storing the sequence number of error-free the message receiving.In this case, redundant processing unit is preferably established as for check stored sequence number when receiving new message.This can realize the message of effectively processing especially redundancy.
Network node for above-mentioned industrial communication system that can redundant operation according to the present invention comprise at least one for receive wire transmission redundancy message receiving element and at least one is for sending the transmitting element of the message of the redundancy for the treatment of wireless transmission.In addition, be provided with the buffer storage unit for the message element that receives through a cable and treat wireless transmission being connected with receiving element be connected with transmitting element.Buffer storage unit has largest buffered size and forms and be established as, and makes, when surpassing largest buffered size, the oldest message element being present in corresponding buffer storage unit to be deleted from buffer storage unit.In addition, buffer storage unit forms and is established as, and makes, before surpassing largest buffered size, the oldest message element to be elected to be to the message element that the next one is treated wireless transmission.According to network node of the present invention, for example can comprise network infrastructure device, as interchanger, hub, router or bridge; Wireless base station, as WLAN access point; Or comprise Wireless Telecom Equipment, as mobile wlan client, and with other network node actings in conjunction that correspondingly form under can realize be effectively limited in PRP or HSR communication network in time of delay during employing wireless transmission path.
According to the method for redundant operation industrial communication system according to the present invention, a plurality of communication equipments are connected on industrial communication network redundantly.At this, communication equipment has respectively at least one first and second sending and receiving unit, and described the first and second sending and receiving unit comprise respectively the interface for the network connection of described industrial communication network.Two sending and receiving unit have the identical network address.In addition, communication equipment comprises respectively the signal processing unit being connected with the first and second sending and receiving unit, and described signal processing unit is forwarded to concurrently on two transmitting elements by message to be sent and detects the message of the redundancy being received by receiving element.The message for the treatment of redundant transmission is preferably according to the seamless redundancy protocol of high availability or transmit according to parallel redundancy agreement.
In addition, according to the present invention, be provided with a plurality of network infrastructure device that are associated with industrial communication network, described network infrastructure device comprises respectively a plurality of sending and receivings unit and by the interconnective coupling element in sending and receiving unit of network infrastructure device.In industrial communication network, transmission of messages is wirelessly carried out by means of a plurality of sending and receivings station at least partly.In addition, industrial communication network comprises a plurality of buffer storage units for receiving through a cable on network node and treated the message element of wireless transmission by described network node.Buffer storage unit has respectively largest buffered size.According to the present invention, when surpassing largest buffered size, the oldest message element being present in corresponding buffer storage unit is deleted from buffer storage unit.The oldest message element preferably corresponding to all be present among corresponding buffer storage unit, be first inserted into the message element in buffer storage unit.Before surpassing largest buffered size, the oldest message element is elected to be to the message element that the next one is treated wireless transmission.By this way, especially can in PRP and HSR communication network, avoid unallowed high time of delay.
Except above-mentioned measure or method step, can change the medium access control protocol (Medienzugriffsprotokolle) being especially applied in safe level (according to the layer 2 of OSI Reference Model), as CSMA/CA, message to be sent is just dropped after the time at short retry.In addition, running time, difference also can limit by application iPCF agreement (industrial sites coordination function industrial Point Coordination Function).For with respect to poor improving tolerance running time, also can increase for the length of the sequence number of the message of redundancy each other.According to another preferred design of the method according to this invention, the message of redundancy identifies by unified sequence number each other.For example, the signal processing unit of the communication equipment of redundancy link is given serial number assignment the message for the treatment of redundant transmission.According to another design of the method according to this invention, signal processing unit is assigned memory cell, the sequence number of the message that described cell stores has received error-freely.At this, redundant processing unit is advantageously to the new message inspection receiving stored sequence number.
In addition, can advantageously adjust the configuration of wireless network components, make to allow the possible maximum message size corresponding to PRP or HSR message.When in the situation that when surpassing default permission timeliness deleting message element from corresponding buffer storage unit, draw the further restriction of time of delay according to another design of the method according to this invention.
Accompanying drawing explanation
Hereinafter, by means of accompanying drawing, elaborate one embodiment of the present of invention.Accompanying drawing illustrates:
Fig. 1 illustrate have a plurality of redundancy links to the network equipment on industrial communication network can redundant operation industrial communication system,
Fig. 2-6 be illustrated under different occupied states for according to the schematic diagram of the buffer circle of the network node of the communication system of Fig. 1.
Embodiment
Industrial communication system shown in Figure 1 comprises a plurality of communication equipment 11-14 that are connected to redundantly on two subnets 1,2, and described communication equipment has identical design in the present embodiment.Illustratively, the communication equipment 11 of redundancy link is at length shown, described communication equipment can be assigned to the 110(data acquisition of SCADA system and supervisor control Supervisory Control and data Acquisition), and be connected via interconnect port 117 with described SCADA system.In the present embodiment, the communication equipment 12-14 that remaining connects redundantly distributes to transducer or the actuator system of industrial automation system in level at the scene, for example, distribute to manufacturing machine people 120, for the driver 130 of transfer system or distribute to manipulation and the observation station 140 on production line.
The communication equipment 11-14 of redundancy link has respectively the first and second sending and receiving unit 111-112,121-122,131-132,141-142, and described the first and second sending and receiving unit comprise respectively the interface for the network connection of of the subnet 1,2 to two redundancies.At this, two sending and receiving unit 111-112,121-122,131-132, the 141-142 of the communication equipment 11-14 of redundancy link have identical IP address.
In the communication equipment 11 exemplarily illustrating, the signal processing unit 113 of realizing by means of field programmable gate array is connected with the first and second sending and receiving unit 111-112, and described signal processing unit comprises for message to be sent is walked abreast and is transmitted to the multiplexer module 114 of two transmitting element 111-112.In addition, in order to process the message being received by two receiving element 111-112, be provided with redundant processing unit 115, described redundant processing unit comprises the filter unit 116 for detection of the message of the redundancy receiving.In the present embodiment, the message for the treatment of redundant transmission is transmitted according to parallel redundancy agreement.In principle, according to the transmission of the seamless redundancy protocol of high availability, be feasible.Embodiment is subsequently applicable to this similarly.
The message of redundancy identifies by unified sequence number each other.At this, the signal processing unit of the communication equipment 11-14 of redundancy link is given serial number assignment the message for the treatment of redundant transmission.In addition, signal processing unit is assigned the memory cell of the sequence number of the message that storage received error-freely.On this basis, redundant processing unit for detect the redundancy receiving message and to the new message inspection receiving stored sequence number.
The subnet 1,2 of two redundancies comprises respectively a plurality of relevant network infrastructure device 21-23, is bridge or switch in the present embodiment.For subnet 1, this is exemplarily shown specifically in Fig. 1.Network infrastructure device 21-23 comprises respectively a plurality of sending and receivings unit 211-214 and by the interconnective coupling element 215 of sending and receiving unit 211-214.For simpler general view, this only at large illustrates for network infrastructure device 21 in Fig. 1, yet this is also applicable to two other network infrastructure device 22-23.In the present embodiment, the coupling element 215 of network infrastructure device 21 is realized by having the back plate type switch of the controller 216 being associated.
Transmission path along in subnet 1 according to Fig. 1, wirelessly exchanges messages between two radio station 31-32 based on WLAN.At this, network infrastructure device 21 and radio station 32 are associated with a network node.Network infrastructure device 21 and radio station 31 are assigned respectively the buffer storage unit 217,311 of the message element for receiving through a cable on network node and treated wireless transmission by described network node.Described buffer storage unit 217,311 is preferably configured to buffer circle, and has respectively default largest buffered size.
In Fig. 2 and 3, for buffer storage unit 311, exemplarily illustrate: before surpassing largest buffered size, respectively the oldest Frame FRM1 is elected to be to the Frame 41 that the next one is treated wireless transmission.This is also applicable to after receiving Frame FRM3 the Frame 40 as up-to-date wire transmission.In Fig. 2 and 3, the described Frame 41 for the treatment of wireless transmission as next respectively illustrates in the mode of shade.The oldest Frame FRM1 is corresponding to being first inserted into the Frame in buffer storage unit all among being present in Frame FRM1, FRM2 in buffer storage unit 311, FRM3.
According to Fig. 4 to 6, while surpassing largest buffered size (n) after receiving data frames FRMn+1, FRMn+2 are as the Frame 40 of up-to-date wire transmission, the oldest Frame FRM1, the FRM2 that are present in accordingly in buffer storage unit 311 are deleted from buffer storage unit 311.The mode of closeer shade of usining in Fig. 4 to 6 illustrates corresponding as Frame 42 next to be deleted.Before receiving data frames FRMn+1, described next one Frame to be deleted is FRM1(Fig. 4---after receiving data frames FRMn---).After receiving data frames FRMn+1, described Frame to be deleted is Frame FRM2(Fig. 5), and after receiving data frames FRMn+1, described Frame to be deleted is FRM3(Fig. 6).Except described, be different from FIFO(first in first out) the buffer circle mechanism of mechanism, according to a preferred form of implementation, when surpassing default permission timeliness, from corresponding buffer storage unit, delete Frame.
The feature of the above embodiments not only can realize individually, and can realize with the form of described mutual combination.
Claims (18)
1. an industrial communication system for energy redundant operation, has:
-a plurality of redundancy links are to the communication equipment on industrial communication network, and described communication equipment has respectively:
-at least one first transmission receiving element and second sending and receiving unit, described the first transmission receiving element and the second sending and receiving unit have respectively the interface for the network connection of described industrial communication network, wherein these two sending and receiving unit have the identical network address
-the signal processing unit that is connected with described the first sending and receiving unit and described the second sending and receiving unit, described signal processing unit has for by the parallel multiplexer module that is transmitted to two transmitting elements of message to be sent and for the treatment of the redundant processing unit by the received message of two receiving elements, wherein said redundant processing unit comprises the filter unit being established as for detection of the message of received redundancy
-network infrastructure device that a plurality of and described industrial communication network is associated, described network infrastructure device has respectively:
-a plurality of sending and receivings unit,
-by the interconnective coupling element in described sending and receiving unit of network infrastructure device,
It is characterized in that,
-described industrial communication network comprises a plurality of sending and receiving stations for wireless transmission of messages,
-described industrial communication network comprises a plurality of buffer storage units for receiving through a cable on network node and treated the message element of wireless transmission by described network node, wherein said buffer storage unit has respectively largest buffered size and forms and be established as, make when surpassing described largest buffered size, the oldest message element being present in corresponding described buffer storage unit is deleted from described buffer storage unit, and made before surpassing described largest buffered size, the oldest described message element is elected to be to the message element that the next one is treated wireless transmission.
2. communication system according to claim 1,
Wherein said buffer storage unit is configured to buffer circle.
3. communication system according to claim 1 and 2,
The oldest wherein said message element is corresponding to be first inserted into the message element in described buffer storage unit among all message elements that are present in corresponding described buffer storage unit.
4. according to the communication system described in any one in claims 1 to 3,
Wherein said buffer storage unit forms and is established as, and makes from corresponding described buffer storage unit, to delete message element when surpassing default permission timeliness.
5. according to the communication system described in any one in claim 1 to 4,
Wherein the message of redundancy identifies by unified sequence number each other, and wherein, the described signal processing unit of the communication equipment of redundancy link be established as for by serial number assignment to the message for the treatment of redundant transmission.
6. communication system according to claim 5,
And wherein said signal processing unit is assigned memory cell, described memory cell is established as for storing the sequence number of error-free the message receiving, and wherein said redundant processing unit is established as for check stored sequence number when receiving new message.
7. according to the communication system described in any one in claim 1 to 6,
Wherein the described signal processing unit of the communication equipment of redundancy link is realized by means of field programmable gate array.
8. according to the communication system described in any one in claim 1 to 7,
Wherein the described coupling element of network infrastructure device is high-speed bus and/or the back plate type switch with the controller being associated.
9. according to the communication system described in any one in claim 1 to 8,
Wherein according to the seamless redundancy protocol of high availability and/or treat the transmission of the message of redundant transmission according to parallel redundancy agreement.
10. according to the communication system described in any one in claim 1 to 9,
The sending and receiving station of wherein buffer storage unit being distributed to network infrastructure device or being transmitted for wireless information.
11. according to the communication system described in any one in claim 1 to 10,
Wherein said industrial communication network comprises for the first sending and receiving station of wireless transmission of messages and the second sending and receiving station, and described the first sending and receiving station is base station, and wherein, described the second sending and receiving station is the Wireless Telecom Equipment that can connect base station.
12. 1 kinds for according to described in any one of claim 1 to 11 can redundant operation the network node of industrial communication system, described network node has:
-at least one receiving element, for receiving the message of the redundancy of wire transmission,
-at least one transmitting element, for sending the message of the redundancy for the treatment of wireless transmission,
-be connected with described receiving element and be connected with described transmitting element for wired that receive and treat the buffer storage unit of the message element of wireless transmission, described buffer storage unit has largest buffered size and forms and be established as, make when surpassing described largest buffered size, the oldest message element being present in corresponding described buffer storage unit is deleted from described buffer storage unit, and make, before surpassing described largest buffered size, the oldest described message element to be elected to be to the message element that the next one is treated wireless transmission.
13. 1 kinds of methods for redundant operation industrial communication system, wherein
-by a plurality of communication equipment redundancy links to industrial communication network, wherein said communication equipment comprises respectively:
-at least one first transmission receiving element and second sending and receiving unit, described the first transmission receiving element and the second sending and receiving unit have respectively the interface for the network connection of described industrial communication network, wherein two sending and receiving unit have the identical network address, and
-the signal processing unit that is connected with described the first sending and receiving unit and described the second sending and receiving unit, described signal processing unit is transmitted to concurrently two transmitting elements by message to be sent and detects the message of the redundancy being received by described receiving element
-being provided with the network infrastructure device that a plurality of and described industrial communication network is associated, described network infrastructure device comprises separately:
-a plurality of sending and receivings unit, and
-by the interconnective coupling element in described sending and receiving unit of network infrastructure device,
It is characterized in that,
-transmission of messages in industrial communication network is wirelessly carried out by means of a plurality of sending and receivings station at least partly,
-described industrial communication network comprises a plurality of buffer storage units for receiving through a cable on network node and treated the message element of wireless transmission by described network node, and wherein said buffer storage unit has respectively largest buffered size,
-when surpassing described largest buffered size, the oldest message element being present in corresponding described buffer storage unit is deleted from described buffer storage unit,
-before surpassing described largest buffered size, the oldest described message element is elected to be to the message element that the next one is treated wireless transmission.
14. methods according to claim 13,
The oldest wherein said message element is corresponding to be first inserted into the message element in described buffer storage unit among all message elements that are present in corresponding described buffer storage unit.
15. according to the method described in claim 13 or 14,
Wherein when surpassing default permission timeliness, from corresponding described buffer storage unit, delete message element.
16. according to claim 13 to the method described in any one in 15,
Wherein the message of redundancy identifies by unified sequence number each other, and wherein the described signal processing unit of the communication equipment of redundancy link is given serial number assignment the message for the treatment of redundant transmission.
17. methods according to claim 16,
And wherein said signal processing unit is assigned the memory cell of the described series number that storage received error-freely, and wherein, described redundant processing unit is to received new information inspection stored sequence number.
18. according to claim 13 to the method described in any one in 17,
Wherein according to the seamless redundancy protocol of high availability and/or transmit the message for the treatment of redundant transmission according to parallel redundancy agreement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12185676.9A EP2712124B1 (en) | 2012-09-24 | 2012-09-24 | Redundant industrial communication system and method for its operation |
| EP12185676.9 | 2012-09-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103684954A true CN103684954A (en) | 2014-03-26 |
| CN103684954B CN103684954B (en) | 2018-08-10 |
Family
ID=46924337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310431934.6A Active CN103684954B (en) | 2012-09-24 | 2013-09-22 | The industrial communication systems of energy redundant operation and the method for operating the industrial communication systems |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9407582B2 (en) |
| EP (1) | EP2712124B1 (en) |
| CN (1) | CN103684954B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108255139A (en) * | 2016-12-29 | 2018-07-06 | 西门子公司 | For the method for the radio communications system and its operation of industrial automation system |
| CN108702804A (en) * | 2016-02-29 | 2018-10-23 | 西门子股份公司 | Wireless communication system for industrial automation system, the method and radio transceiver station for its operation |
| CN109118745A (en) * | 2018-07-12 | 2019-01-01 | 国网江西省电力有限公司电力科学研究院 | A kind of industrial control information transmission system |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6477111B2 (en) * | 2015-03-24 | 2019-03-06 | 富士ゼロックス株式会社 | Information processing apparatus and information processing program |
| CN116170118A (en) | 2015-06-03 | 2023-05-26 | 赫思曼自动化控制有限公司 | Method for a redundant transmission system with PRP and packet buffering |
| EP3211838B1 (en) | 2016-02-29 | 2018-08-29 | Siemens Aktiengesellschaft | Redundant industrial communication system, method of operating same and radio transceiver station |
| EP3240356A1 (en) | 2016-04-29 | 2017-11-01 | Siemens Aktiengesellschaft | Redundant industrial communication system, method of operating the same and wireless device station |
| US10218644B1 (en) * | 2016-09-21 | 2019-02-26 | Apple Inc. | Redundant communication path transmission |
| EP3301523A1 (en) | 2016-09-30 | 2018-04-04 | Siemens Aktiengesellschaft | Redundant operable communications system for an industrial automation system and method of operation |
| ES2827208T3 (en) | 2018-01-24 | 2021-05-20 | Siemens Ag | Radiocommunication system for an industrial automation system and procedure for the operation of a radiocommunication system |
| EP3522605A1 (en) | 2018-01-31 | 2019-08-07 | Siemens Aktiengesellschaft | Radio communication system for an industrial automation system and method for operating a radio communication system |
| CN108614546B (en) * | 2018-06-11 | 2024-06-07 | 上海博灿信号设备有限公司 | Redundant communication system of robot |
| US10567197B2 (en) * | 2018-06-14 | 2020-02-18 | Cisco Technology, Inc. | Quality-of-service based wireless parallel redundant protocol solution |
| EP3873009B1 (en) * | 2020-02-28 | 2024-08-21 | Siemens Aktiengesellschaft | Method for synchronising control applications over a communications network for transmitting time-critical data, network infrastructure device and communications end device |
| EP4006659A1 (en) | 2020-11-25 | 2022-06-01 | Siemens Aktiengesellschaft | Edge device |
| US11265208B1 (en) | 2020-12-29 | 2022-03-01 | Honeywell International Inc. | Detecting path faults in parallel redundancy protocol communications |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040249969A1 (en) * | 2000-09-12 | 2004-12-09 | Price Harold Edward | Streaming media buffering system |
| US7272298B1 (en) * | 1998-05-06 | 2007-09-18 | Burst.Com, Inc. | System and method for time-shifted program viewing |
| US20110116508A1 (en) * | 2008-07-22 | 2011-05-19 | Abb Research Ltd | Ring coupling nodes for high availability networks |
| CN102325057A (en) * | 2011-06-27 | 2012-01-18 | 中国商用飞机有限责任公司 | Network testing device |
| US20120023452A1 (en) * | 2009-04-06 | 2012-01-26 | Koninklijke Philips Electronics N.V. | Method and apparatus for generating a menu display |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007046440B3 (en) * | 2007-09-28 | 2009-01-15 | Siemens Ag | Communication method and master-slave system for a fieldbus designed according to the AS-Interface standard |
| US20090234997A1 (en) * | 2008-03-12 | 2009-09-17 | Your Voice S.P.A. | Connecting device for connecting industrial apparatuses to a communication bus |
| ATE552672T1 (en) | 2009-07-31 | 2012-04-15 | Abb Research Ltd | DATA TRANSMISSION IN A RING COMMUNICATIONS NETWORK |
| ES2411081T3 (en) | 2010-07-30 | 2013-07-04 | Siemens Aktiengesellschaft | Transmission loop prevention in a redundant ring network |
| EP2759162B1 (en) * | 2011-06-10 | 2020-03-04 | Hirschmann Automation and Control GmbH | Completely redundant connection and handover in cellular industrial radio networks |
-
2012
- 2012-09-24 EP EP12185676.9A patent/EP2712124B1/en active Active
-
2013
- 2013-09-22 CN CN201310431934.6A patent/CN103684954B/en active Active
- 2013-09-23 US US14/034,095 patent/US9407582B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7272298B1 (en) * | 1998-05-06 | 2007-09-18 | Burst.Com, Inc. | System and method for time-shifted program viewing |
| US20040249969A1 (en) * | 2000-09-12 | 2004-12-09 | Price Harold Edward | Streaming media buffering system |
| US20110116508A1 (en) * | 2008-07-22 | 2011-05-19 | Abb Research Ltd | Ring coupling nodes for high availability networks |
| US20120023452A1 (en) * | 2009-04-06 | 2012-01-26 | Koninklijke Philips Electronics N.V. | Method and apparatus for generating a menu display |
| CN102325057A (en) * | 2011-06-27 | 2012-01-18 | 中国商用飞机有限责任公司 | Network testing device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108702804A (en) * | 2016-02-29 | 2018-10-23 | 西门子股份公司 | Wireless communication system for industrial automation system, the method and radio transceiver station for its operation |
| CN108702804B (en) * | 2016-02-29 | 2020-10-27 | 西门子股份公司 | Wireless communication system for an industrial automation system, method for the operation thereof |
| CN108255139A (en) * | 2016-12-29 | 2018-07-06 | 西门子公司 | For the method for the radio communications system and its operation of industrial automation system |
| CN108255139B (en) * | 2016-12-29 | 2020-08-25 | 西门子公司 | Radio communication system for an industrial automation system and method for operating the same |
| CN109118745A (en) * | 2018-07-12 | 2019-01-01 | 国网江西省电力有限公司电力科学研究院 | A kind of industrial control information transmission system |
| CN109118745B (en) * | 2018-07-12 | 2020-12-15 | 国网江西省电力有限公司电力科学研究院 | Industrial control information sending system |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140086136A1 (en) | 2014-03-27 |
| US9407582B2 (en) | 2016-08-02 |
| EP2712124B1 (en) | 2015-04-01 |
| EP2712124A1 (en) | 2014-03-26 |
| CN103684954B (en) | 2018-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103684954A (en) | Redundantly operable industrial communication system and method for operation thereof | |
| CN104378291A (en) | Method for the redundant transmission of messages in an industrial communication network and communication device | |
| CN203747852U (en) | Industrial communication-network communication equipment for redundant operation | |
| CN108702317B (en) | Industrialized communication system, the method and wireless receiving station for its operation that can redundantly run | |
| US20160142225A1 (en) | Communication system, communication apparatus, and protection method | |
| CN102106121A (en) | Ring coupling nodes for high availability networks | |
| JP2010510741A (en) | Communication system having master / slave structure | |
| KR100595984B1 (en) | Transceiver Frame Structure for Control Communication Network of Distributed Control System | |
| CN103581164A (en) | Method for transmitting messages in redundantly operable industrial communication network and communication device for redundantly operable industrial communication network | |
| US9019816B2 (en) | Communication system, communication method, and communication apparatus | |
| US9398495B2 (en) | Completely redundant connection and handover in cellular industrial radio networks | |
| US10405185B2 (en) | Redundantly operable industrial communication system, method for operation thereof and radio subscriber station | |
| US10484238B2 (en) | Radio communication system for an industrial automation system, method for operating said radio communication system, and radio transceiver station | |
| CN113852529B (en) | Back board bus system for data communication of trackside equipment and data transmission method thereof | |
| CN108255139B (en) | Radio communication system for an industrial automation system and method for operating the same | |
| CN101686169B (en) | Scheme for avoiding deadlock in multi-ring interconnect, with additional application to congestion control | |
| CN104079396A (en) | Network redundant structure | |
| CN203563079U (en) | Communication device used for industrial communication network which can be operated in redundant manner | |
| US11026119B2 (en) | Radio communication system for an industrial automation system and method for operating the radio communication system | |
| CN107888404A (en) | The communication system and its operation method of the energy redundancy running of industrial automation system | |
| WO2006075402A1 (en) | Open loop network node device and open loop network control method | |
| CN103607288B (en) | The linear lossless network guard method of data network | |
| CN101039249B (en) | Method for transmitting monitor data and multiplexing equipment | |
| CN109361605B (en) | Dual-IP deployment service protection method and system for transmission network system | |
| JP2013088826A (en) | Data input method in redundant system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |